9th Class Science Sample Paper Sample Paper - 5 Term - 1

  • question_answer
      Four test tubes P, Q, R, S shown below contain the following: On adding 2 drops of iodine to each test tube, which will show blue-black solution?


      P and S. Rice and patato contain starch. When is added in starch, it gives blue-black colour.                                                                                                     (1)

You need to login to perform this action.
You will be redirected in 3 sec spinner